[Q] a2dp music issue non-rooted 4.1.2

When I bought My Tab 2 3100, it was running 4.1.1. I got hm110 bluetooth mono headset as an offer. It was working perfectly fine for listening to music too. But after few minor upgrades, i can use my bluetooth headset only to make calls and not for listening to music.

when i use play via bluetooth option on music player, it doesn't discover my device. i have tried another bluetooth too but still not getting recognized.

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